Sampling and Non-sampling Errors

Explain the following step involved in a sample survey:

'Analyse and interpret the information'.

Explain the following step involved in a sample survey:

'Scrutinise the information gathered'.

Explain the following step involved in a sample survey:

'Select the sampling scheme and sample size'.

Explain the following step involved in a sample survey:

'Develop the questionnaire'.

Explain the steps in a sample survey

State the sources of non sampling errors

Write the difference between sampling error and non sampling error.

'Over coverage errors’ occurs under which conditions?

The error of Non response may occur due to interviewer by neglecting to ask all the questions in the schedule.

 Sampling error is caused by the deviation between population mean and the sample mean. i.e. $\overline{\mathrm{x}}-\mathrm{\mu }$ and non sampling error is caused due to deficiency in the analysis of data.